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All results from a given calculation for C2H5 (Ethyl radical)

using model chemistry: MP4=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-79.033287
Energy at 298.15K-79.037155
HF Energy-78.628150
Nuclear repulsion energy37.083581
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP4=FULL/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3200 3082        
2 A' 3081 2967        
3 A' 3006 2895        
4 A' 1508 1453        
5 A' 1495 1440        
6 A' 1413 1360        
7 A' 1082 1042        
8 A' 993 957        
9 A' 489 471        
10 A" 3283 3161        
11 A" 3119 3003        
12 A" 1506 1450        
13 A" 1210 1165        
14 A" 817 787        
15 A" 130 126        

Unscaled Zero Point Vibrational Energy (zpe) 13167.1 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 12678.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/cc-pVTZ
ABC
3.48836 0.76271 0.70755

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 -0.693 0.000
C2 -0.011 0.793 0.000
H3 1.007 -1.097 0.000
H4 -0.509 -1.092 0.882
H5 -0.509 -1.092 -0.882
H6 0.072 1.342 -0.921
H7 0.072 1.342 0.921

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.48631.09501.08821.08822.23552.2355
C21.48632.14632.13962.13961.07561.0756
H31.09502.14631.75361.75362.76902.7690
H41.08822.13961.75361.76353.08412.5025
H51.08822.13961.75361.76352.50253.0841
H62.23551.07562.76903.08412.50251.8425
H72.23551.07562.76902.50253.08411.8425

picture of Ethyl radical state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability